UASt regulatory sequences drive expression of an inverted repeat of a 942bp fragment corresponding to nucleotides 2778-3720 of GenBank accession NM_079903 (this sans the coding region for the conserved KIX domain), in tail-to-tail orientation.
Larval salivary glands persist in pupae expressing nejdsRNA.Scer\UAS.cYa under the control of Scer\GAL4SG.